It is fashionable to drive a car, but to drive a car is not nearly as difficult as it is imagined on condition that you ______ the specialized rules.
The home ________ the lion is Africa while the koala bear is native ________Australia.
You can't see anything clearly through a telescope unless it ________ correctly to your sight.
The special medicine for the disease was difficult to find though ________ everywhere.
So many problems ________, he is having a difficult time.
The book is so ________ that everyone who has read it will ________ it.